This video will help you understand the two functions of your lawn tractor's safety switches: Shutting down a running engine, and disabling the starting system. You will also learn how to understand a wiring diagram (schematic) to better understand how your particular tractor's safety switches operate. Thank you for watching, and please subscribe to my channel for more small engine videos. For more info on tractor safety switches, see my blog post on this topic: http://dwloose.blogspot.com/2017/10/